Aero Precision M4E1 .300 AAC Blackout AR-15, 8.5-inch Threaded Barrel, Custom Camo Cerakote, Free-Float M-LOK Handguard, BCM Gunfighter Charging Handle
This Aero Precision M4E1 in .300 AAC Blackout is a custom AR-pattern build centered on the M4E1 receiver set with integrated trigger guard. It features an 8.5-inch threaded barrel, a free-float M-LOK handguard that extends past the muzzle, and a custom camouflage Cerakote finish. Practical upgrades include a BCM Gunfighter charging handle with extended latch, Magpul fixed carbine stock, Magpul MOE-K2 grip, and an angled foregrip. Two 30-round Magpul PMAGs are included, one specifically marked for 300 BLK.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: The firearm is in great shape overall. The custom camouflage Cerakote shows a few minor scratches and small paint blemishes consistent with light handling.
What’s Included
- Aero Precision M4E1 .300 AAC Blackout firearm as described
- 2x 30-round Magpul PMAGs: one PMAG Gen M3 for 300 BLK (marked "300 BLK") and one PMAG Gen M3 Window (AR/M4) sealed in Magpul packaging
- BCM Gunfighter charging handle (installed)
- Polymer angled foregrip (installed)
- Magpul fixed carbine stock (installed)
- Magpul MOE-K2 pistol grip (installed)
Built on Aero Precision’s forged-aluminum M4E1 receiver set, this rifle-format .300 BLK features an integrated trigger guard and AR-15 pattern upper with forward assist, brass deflector, and dust cover. The receiver is marked "MOD M4E1 / CAL MULTI" and "AERO PRECISION LLC, TACOMA, WA."
The 8.5-inch .300 AAC Blackout barrel is threaded and paired with a free-float aluminum M-LOK handguard. The handguard’s continuous 12 o’clock Picatinny rail extends past the muzzle; the barrel is shorter than the handguard by design.
Controls and furniture are thoughtfully upgraded: a BCM Gunfighter charging handle with extended latch enhances manipulation, while the Magpul fixed carbine stock and MOE-K2 pistol grip provide a steady, vertical-leaning grip angle. An angled foregrip is installed for additional front-end control.
The custom camouflage Cerakote finish in green, tan, and black covers the receiver set and handguard for a cohesive look. The rifle operates on a direct impingement system and includes two 30-round Magpul PMAGs, including a dedicated 300 BLK Gen M3.